unsay vs withdraw

unsay and withdraw both are verbs.

Word	Noun	Adjective	Verb	Adverb
unsay	No	No	Yes	No
withdraw	No	No	Yes	No

As verbs, unsay and withdraw are synonyms defined as:

Other synonyms of unsay include swallow, take back.

unsay (verb)	withdraw (verb)
take back what one has said	keep away from others
	remove something concrete, as by lifting, pushing, or taking off, or remove something abstract
	make a retreat from an earlier commitment or activity
	take back what one has said
	release from something that holds fast, connects, or entangles
	lose interest
	pull back or move away or backward
	remove (a commodity) from (a supply source)
	cause to be returned
	break from a meeting or gathering
	withdraw from active participation
	retire gracefully